diff mbox series

[v2,5/5] arm64: dts: mediatek: asurada: Add aliases for i2c and mmc

Message ID 20221006212528.103790-6-nfraprado@collabora.com
State New
Headers show
Series MT8192 Asurada devicetree - Part 2 | expand

Commit Message

Nícolas F. R. A. Prado Oct. 6, 2022, 9:25 p.m. UTC
Add aliases for the i2c and mmc nodes on the Asurada platform DT to
ensure that we get stable ids for those devices on userspace.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>

---

Changes in v2:
- Added this commit

 arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

Comments

Chen-Yu Tsai Oct. 7, 2022, 3:51 a.m. UTC | #1
On Fri, Oct 7, 2022 at 5:25 AM Nícolas F. R. A. Prado
<nfraprado@collabora.com> wrote:
>
> Add aliases for the i2c and mmc nodes on the Asurada platform DT to
> ensure that we get stable ids for those devices on userspace.
>
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
>
> ---
>
> Changes in v2:
> - Added this commit
>
>  arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> index dac2d4f5e670..758ca42a6156 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> @@ -11,6 +11,18 @@
>
>  / {
>         aliases {
> +               i2c0 = &i2c0;
> +               i2c1 = &i2c1;
> +               i2c2 = &i2c2;
> +               i2c3 = &i2c3;
> +               i2c4 = &i2c4;
> +               i2c5 = &i2c5;
> +               i2c6 = &i2c6;
> +               i2c7 = &i2c7;
> +               i2c8 = &i2c8;
> +               i2c9 = &i2c9;

You should only add aliases for interfaces that are actually enabled.

Also, I think we can disable i2c6. None of the current products use it.

ChenYu

> +               mmc0 = &mmc0;
> +               mmc1 = &mmc1;
>                 serial0 = &uart0;
>         };
>
> --
> 2.37.3
>
Chen-Yu Tsai Oct. 7, 2022, 4:02 a.m. UTC | #2
On Fri, Oct 7, 2022 at 11:51 AM Chen-Yu Tsai <wenst@chromium.org> wrote:
>
> On Fri, Oct 7, 2022 at 5:25 AM Nícolas F. R. A. Prado
> <nfraprado@collabora.com> wrote:
> >
> > Add aliases for the i2c and mmc nodes on the Asurada platform DT to
> > ensure that we get stable ids for those devices on userspace.
> >
> > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
> >
> > ---
> >
> > Changes in v2:
> > - Added this commit
> >
> >  arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi | 12 ++++++++++++
> >  1 file changed, 12 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> > index dac2d4f5e670..758ca42a6156 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> > @@ -11,6 +11,18 @@
> >
> >  / {
> >         aliases {
> > +               i2c0 = &i2c0;
> > +               i2c1 = &i2c1;
> > +               i2c2 = &i2c2;
> > +               i2c3 = &i2c3;
> > +               i2c4 = &i2c4;
> > +               i2c5 = &i2c5;
> > +               i2c6 = &i2c6;
> > +               i2c7 = &i2c7;
> > +               i2c8 = &i2c8;
> > +               i2c9 = &i2c9;
>
> You should only add aliases for interfaces that are actually enabled.
>
> Also, I think we can disable i2c6. None of the current products use it.
>
> ChenYu
>
> > +               mmc0 = &mmc0;
> > +               mmc1 = &mmc1;

Also, Spherion does not have an SD card slot. It might be better to move
the mmc aliases to the end .dts files.

ChenYu
AngeloGioacchino Del Regno Oct. 7, 2022, 8:55 a.m. UTC | #3
Il 06/10/22 23:25, Nícolas F. R. A. Prado ha scritto:
> Add aliases for the i2c and mmc nodes on the Asurada platform DT to
> ensure that we get stable ids for those devices on userspace.
> 
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
> 

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Chen-Yu Tsai Oct. 18, 2022, 6:28 a.m. UTC | #4
On Fri, Oct 14, 2022 at 4:24 AM Nícolas F. R. A. Prado
<nfraprado@collabora.com> wrote:
>
> On Fri, Oct 07, 2022 at 12:02:03PM +0800, Chen-Yu Tsai wrote:
> > On Fri, Oct 7, 2022 at 11:51 AM Chen-Yu Tsai <wenst@chromium.org> wrote:
> > >
> > > On Fri, Oct 7, 2022 at 5:25 AM Nícolas F. R. A. Prado
> > > <nfraprado@collabora.com> wrote:
> > > >
> > > > Add aliases for the i2c and mmc nodes on the Asurada platform DT to
> > > > ensure that we get stable ids for those devices on userspace.
> > > >
> > > > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
> > > >
> > > > ---
> > > >
> > > > Changes in v2:
> > > > - Added this commit
> > > >
> > > >  arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi | 12 ++++++++++++
> > > >  1 file changed, 12 insertions(+)
> > > >
> > > > diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> > > > index dac2d4f5e670..758ca42a6156 100644
> > > > --- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> > > > +++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
> > > > @@ -11,6 +11,18 @@
> > > >
> > > >  / {
> > > >         aliases {
> > > > +               i2c0 = &i2c0;
> > > > +               i2c1 = &i2c1;
> > > > +               i2c2 = &i2c2;
> > > > +               i2c3 = &i2c3;
> > > > +               i2c4 = &i2c4;
> > > > +               i2c5 = &i2c5;
> > > > +               i2c6 = &i2c6;
> > > > +               i2c7 = &i2c7;
> > > > +               i2c8 = &i2c8;
> > > > +               i2c9 = &i2c9;
> > >
> > > You should only add aliases for interfaces that are actually enabled.
>
> Ok, will drop the extra ones.
>
> > >
> > > Also, I think we can disable i2c6. None of the current products use it.
>
> It's already disabled upstream.
>
> > >
> > > ChenYu
> > >
> > > > +               mmc0 = &mmc0;
> > > > +               mmc1 = &mmc1;
> >
> > Also, Spherion does not have an SD card slot. It might be better to move
> > the mmc aliases to the end .dts files.
>
> Based on the downstream dts, rev0 and rev1 do have SD card slot (or at least the
> mmc1 controller isn't disabled on those). However upstream we have a single dts
> (asurada-spherion-r0) shared by those two and rev2 and rev3 (which don't have
> the SD card slot), given that this way we can have a single dts and there's no
> disadvantage to keeping the mmc1 node enabled because the CD IRQ will never be
> triggered. With this in mind, I think it makes more sense to keep the mmc
> aliases in the asurada dtsi, as there's no harm in having them, and will ensure
> fixed ids for the rev0 and rev1 spherion boards.

Sounds good to me.

ChenYu
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index dac2d4f5e670..758ca42a6156 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -11,6 +11,18 @@ 
 
 / {
 	aliases {
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
+		i2c3 = &i2c3;
+		i2c4 = &i2c4;
+		i2c5 = &i2c5;
+		i2c6 = &i2c6;
+		i2c7 = &i2c7;
+		i2c8 = &i2c8;
+		i2c9 = &i2c9;
+		mmc0 = &mmc0;
+		mmc1 = &mmc1;
 		serial0 = &uart0;
 	};